Samuel Arba Mosquera

10 Questions 146 Answers 0 Followers

Questions related from Samuel Arba Mosquera

Is there a closed equation for the relationship between M2 and Strehl Ratio?

Actually measuring Strehl may be easier than accurately determining M2. But M2 is a value typically included in the specifications of laser sources. This M2 will make Strehl Ratio be lower (in...

24 November 2018 7,749 9 View

Optical scanner for elliptical scanning pathways?

In your opinion what would be the optimum optical scanner for elliptical scanning trajectories (general elliptical, i.e. from line to circular in different sizes). Which current solutions would...

09 November 2016 6,971 1 View

Where can I find a laser source of ~1135nm pulses (monochromatic), with ~10ps pulse durations, >10µJ pulse energy, 100KHz-10MHz repetition rate?

Do you know any supplier which may be able to provide something within or tlose to these specs? The wished target specifications (best efforts) are: Pulse duration: 10 ps (10-20...

04 September 2014 5,094 3 View

Unconventional ways and methods to get a laser running with a wavelength of 360nm to 375nm?

I am searching for alternatives to 3rd harmonic generation out of Nd:YAG lasers (fundamental mode at 1064nm) to emit pulsed laser radiation somewhere in the range 360nm to 375nm. If I may further...

26 October 2013 968 8 View

High speed eye tracking

Do you know of any company providing eye-tracking solutions (for whichever application, no matter whether commercial or only OEM) with acquisition rates over 1KHz and latency times below 3ms?

07 June 2013 3,085 8 View

What is the UV laser radiation exposure level that can damage corneal epithelium (photokeratitis)?

I hope someone may clarify to me a question regarding this paper: Review of exposure limits and experimental data for corneal and lenticular damage from short pulsed UV and IR laser radiation....

07 June 2013 1,509 0 View

IOL implantation

My mom has just been operated on for cataracts in her dominant eye about a month ago. She had an aspheric monofocal IOL counterbalancing corneal spherical aberration implanted to theoretically get...

27 February 2013 4,469 2 View

What is the maximum number of Zernike polynomials that can be fitted before reaching numerical unstability?

I am looking and searching for a paper (I think published on JRS or JCRS, but I am not quite sure) that determined based on specific aberration maps of humans, the number of zernike coefficients...

21 August 2012 6,295 1 View

Which technologies allow fast (KHz) and precise (µm) focus of a laser beam in large focus ranges (mm)?

I have a focused laser beam that needs to shifted within 1mm range in about 500Hz but to 1µm precision.

16 August 2012 2,061 9 View

Effect of Strehl on Spot Size

The expression used to calculate the minimum focusable (difraction limited) spot size is: Size=(1,22*lambda/sin(theta)) considering that already from a LASER source some imperfections reduces...

01 January 1970 2,238 0 View